Ok, got it working now.
This truck was bought new for a Tree service, and was sold in 1979 to a landscape company, then sold to a machinst, and then to me. This truck has 48K original miles. All reciepts of parts ('64-'05) were in the glovebox since I got it. Apparently someone was planning on pulling the engine at the machinist's. All wiring was unplugged or cut.
Does anyone know how to adjust the tailshaft Parking brake on these? I also got a PTO setup on this. When I get it installed, is the box on the trans all I need? What gear do I put it in to drive it?